Yasuda K, Ohoyama H, Kasai T
Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan.
J Phys Chem A. 2008 Nov 20;112(46):11543-6. doi: 10.1021/jp8068688. Epub 2008 Oct 28.
Atomic alignment effects for the formation of ArCl*(C) and CCl2*(A) in the reaction of Ar((3)P 2) + CCl 4 have been measured by using an oriented Ar( (3)P2, M J=2) beam at a collision energy of 0.08 eV. The emission intensity for ArCl*(C) and CCl2*(A) has been measured as a function of the magnetic orientation field direction in the collision frame. A significant atomic alignment effect is observed for the atom transfer process [ArCl*(C) formation]. Formation of ArCl*(C) is modestly enhanced when the electron angular momentum of the Ar((3)P 2) reactant is aligned along the relative velocity vector, while the excitation transfer process [CCl2*(A) formation] shows little alignment effect.
通过使用处于碰撞能量为0.08电子伏特的取向Ar((³P₂), MJ = 2)束流，测量了Ar((³P₂)) + CCl₄反应中ArCl*(C)和CCl₂*(A)形成的原子排列效应。已测量了ArCl*(C)和CCl₂*(A)的发射强度作为碰撞框架中磁场取向场方向的函数。对于原子转移过程[ArCl*(C)形成]观察到显著的原子排列效应。当Ar((³P₂))反应物的电子角动量沿相对速度矢量排列时，ArCl*(C)的形成适度增强，而激发转移过程[CCl₂*(A)形成]显示出几乎没有排列效应。
